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Re: CONTOUR and automatic gridding of irregularly spaced data [message #85036 is a reply to message #85034]

Tue, 25 June 2013 05:03

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Karlo Janos writes:

> But the grid is spaced equally in longitudes and latitudes. It is not a
> real plot of the Voronoi cells based on the data coordinates.
>
> Can you suggest an approach?

I am not at all familiar with how the Contour function works, but how I
typically solve the "gap" problem is to just replicate the first
latitude column as the last column in both the latitude and data arrays.
This gives the direct graphics contour fill algorithm the information it
needs to close the contours over the gap. It also allows you to maintain
the irregular cell spacing of the original data.

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

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[Message index]

		CONTOUR and automatic gridding of irregularly spaced data By: Karlo Janos on Mon, 24 June 2013 06:10
		Re: CONTOUR and automatic gridding of irregularly spaced data By: David Fanning on Mon, 24 June 2013 06:21
		Re: CONTOUR and automatic gridding of irregularly spaced data By: Karlo Janos on Tue, 25 June 2013 00:12
		Re: CONTOUR and automatic gridding of irregularly spaced data By: David Fanning on Tue, 25 June 2013 05:03
		Re: CONTOUR and automatic gridding of irregularly spaced data By: Karlo Janos on Tue, 25 June 2013 06:24

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